The Subway worker who allegedly threatened a customer who asked for ketchup on his Philly cheesesteak.

"[The customer] wants ketchup on the Philly cheese steak and I have never put — we don't even have ketchup at Subway — I've never put ketchup on anybody's sandwich," Lawrence Ordone, a Subway worker, told local station WFTV.

After that, the customer allegedly "mouthed off" to Ordone and a confrontation ensued. According to the customer, Ordone yelled at him, blocked the door, and threatened to kill him.

Ordone lost his job.

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The Burger King worker who tweeted a photo of himself laying on hamburger buns.

The Taco Bell employee who licked taco shells and posted a photo on the Internet.

Taco Bell tracked down and fired the employee after the photo went viral.

In a statement on its website, the company said that the photos were taken during an employee training session and the tacos were not meant to be sold to customers.

"We do not believe these employees harmed, or intended to harm, anyone," the company said in the release. "But we deplore the impressions this has caused to our customers, fans, franchisees, and team members."

The employee defended his actions by saying he did it at home, not at Subway.

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The McDonald's manager who allegedly robbed his own restaurant at gunpoint.

Reuters

Police told The San Francisco Chronicle in September that McDonald's manager Felix Gonzalez-Becerra "donned a hoodie and used a replica handgun to force an employee to open the safe and hand over an undisclosed amount of cash."

The KFC employee who licked mashed potatoes.

Facebook/WJHL

This KFC employee was photographed licking a mound of mashed potatoes at the restaurant. The picture was posted to a local news station's Facebook page and garnered more than 2,000 shares and 700 comments.

The employee was fired, and KFC released a statement saying the photo was taken after the restaurant closed and the food was not served.